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phunix/minix/drivers/net/dpeth/dp.h
David van Moolenbroek f7df02e747 libnetdriver: rewrite 
This is a driver-breaking update to the netdriver library, which is
used by all network drivers.  The aim of this change is to make the
library more compatible with NetBSD, and in particular with various
features that are expected to be supported by the NetBSD userland.
The main changes made by this patch are the following:

- each network driver now has a NetBSD-style short device name;
- drivers are not expected to receive packets right after startup;
- extended support for receipt modes, including multicast lists;
- support for multiple parallel send, receive requests;
- embedding of I/O vectors in send and receive requests;
- support for capabilities, including checksum offloading;
- support for reporting link status updates to the TCP/IP stack;
- support for setting and retrieving media status;
- support for changing the hardware (MAC) address;
- support for NetBSD interface flags IFF_DEBUG, IFF_LINK[0-2];
- support for NetBSD error statistics;
- support for regular time-based ("tick") callbacks.

IMPORTANT: this patch applies a minimal update to the existing drivers
in order to make them work at all with the new netdriver library.  It
however does *not* change all drivers to make use of the new features.
In fact, strictly speaking, all drivers are now violating requirements
imposed by the new library in one way or another, most notably by
enabling packet receipt when starting the driver.  Changing all the
drivers to be compliant, and to support the newly added options, is
left to future patches.  The existing drivers should currently *not*
be taken as examples of how to implement a new network driver!

With that said, a few drivers have already been changed to make use of
some of the new features: fxp, e1000, rtl8139, and rtl8169 now report
link and media status, and the last three of those now support setting
the hardware MAC address on the fly.  In addition, dp8390 has been
changed to default to PCI autoconfiguration if no configuration is
specified through environment variables.

Change-Id: I4b3ea9c0b9bc25d5b0609c6ff256fb0db71cdc42
2017-04-30 13:15:28 +00:00

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/*
** File: eth.h Version 1.00, Jan. 14, 1997
**
** Author: Giovanni Falzoni <gfalzoni@inwind.it>
**
** Interface description for ethernet device driver
**
** $Log$
** Revision 1.5 2006/07/10 12:43:38 philip
** Safecopy support in ethernet drivers.
**
** Revision 1.4 2005/09/04 18:52:16 beng
** Giovanni's fixes to dpeth:
** Date: Sat, 03 Sep 2005 11:05:22 +0200
** Subject: Minix 3.0.8
**
** Revision 1.3 2005/08/03 11:53:34 jnherder
** Miscellaneous cleanups.
**
** Revision 1.2 2005/08/02 15:30:35 jnherder
** Various updates to support dynamically starting drivers.
** Output during initialization should be suppressed. Unless an error occurs.
** Note that main() can now be main(int argc, char **argv) and arguments can
** be passed when bringing up the driver.
**
** Revision 1.1 2005/06/29 10:16:46 beng
** Import of dpeth 3c501/3c509b/.. ethernet driver by
** Giovanni Falzoni <fgalzoni@inwind.it>.
**
** Revision 2.0 2005/06/26 16:16:46 lsodgf0
** Initial revision for Minix 3.0.6
*/
#include <sys/null.h>
#undef ENABLE_3C501
#undef ENABLE_3C503
#undef ENABLE_3C509
#undef ENABLE_NE2000
#undef ENABLE_WDETH
#undef ENABLE_DP8390
#define ENABLE_3C501 1 /* enable 3Com Etherlink I board */
#define ENABLE_3C503 1 /* enable 3Com Etherlink II board */
#define ENABLE_3C509 1 /* enable 3Com Etherlink III board */
#define ENABLE_NE2000 1 /* enable Novell N2000 board */
#define ENABLE_WDETH 1 /* enable Western Digital WD80x3 */
#define ENABLE_DP8390 (ENABLE_3C503|ENABLE_WDETH|ENABLE_NE2000)
#define HAVE_BUFFERS (ENABLE_3C501|ENABLE_3C509)
#define NOT(x) (~(x))
#if VERBOSE == 1
# define DEBUG(statm) statm
#else
# define DEBUG(statm)
#endif
typedef struct _m_hdr_t { /* Buffer handling header */
struct _m_hdr_t *next;
int size;
} m_hdr_t;
typedef struct _buff_t { /* Receive/Transmit buffer header */
struct _buff_t *next;
int size;
int client;
char buffer[2];
} buff_t;
struct dpeth;
typedef void (*dp_eth_t)(struct dpeth *);
typedef int (*dp_send_t)(struct dpeth *, struct netdriver_data *, size_t);
typedef ssize_t (*dp_recv_t)(struct dpeth *, struct netdriver_data *, size_t);
#if ENABLE_DP8390 == 1
typedef void (*dp_user2nicf_t)(struct dpeth *, int, struct netdriver_data *,
size_t);
typedef void (*dp_nic2userf_t)(struct dpeth *, int, struct netdriver_data *,
size_t);
typedef void (*dp_getblock_t)(struct dpeth *, u16_t, int, void *);
#endif
#define SENDQ_NR 2 /* Size of the send queue */
typedef struct dpeth {
/* The de_base_port field is the starting point of the probe. The
* conf routine also fills de_linmem and de_irq. If the probe routine
* knows the irq and/or memory address because they are hardwired in
* the board, the probe should modify these fields. Futhermore, the
* probe routine should also fill in de_initf and de_stopf fields
* with the appropriate function pointers and set de_prog_IO iff
* programmed I/O is to be used.
*
* The initf function fills the following fields. Only cards that do
* programmed I/O fill in the de_data_port field. In addition, the
* init routine has to fill in the sendq data structures. */
/* Board hardware interface */
port_t de_base_port;
port_t de_data_port; /* For boards using Prog. I/O for xmit/recv */
unsigned int de_irq;
int de_hook; /* interrupt hook at kernel */
#define DEI_DEFAULT 0x8000
phys_bytes de_linmem; /* For boards using shared memory */
char *de_locmem; /* Locally mapped (virtual) address */
unsigned int de_ramsize; /* Size of on board memory */
unsigned int de_offset_page; /* Offset of shared memory page */
/* Board specific functions */
dp_eth_t de_initf;
dp_eth_t de_stopf;
dp_eth_t de_resetf;
dp_eth_t de_flagsf;
dp_eth_t de_getstatsf;
dp_eth_t de_dumpstatsf;
dp_eth_t de_interruptf;
dp_recv_t de_recvf;
dp_send_t de_sendf;
netdriver_addr_t de_address; /* Ethernet Address */
unsigned long bytes_Tx; /* Total bytes sent/received */
unsigned long bytes_Rx;
#define SA_ADDR_LEN sizeof(netdriver_addr_t)
int de_flags; /* Send/Receive mode (Configuration) */
#define DEF_EMPTY 0x00
#define DEF_XMIT_BUSY 0x01
#define DEF_PROMISC 0x02
#define DEF_MULTI 0x04
#define DEF_BROAD 0x08
#if ENABLE_DP8390 == 1
/* For use by NS DP8390 driver */
port_t de_dp8390_port;
int de_prog_IO;
int de_16bit;
unsigned int de_startpage;
unsigned int de_stoppage;
/* Do it yourself send queue */
struct sendq {
int sq_filled; /* This buffer contains a packet */
int sq_size; /* with this size */
int sq_sendpage; /* starting page of the buffer */
} de_sendq[SENDQ_NR];
unsigned int de_sendq_nr;
unsigned int de_sendq_head; /* Enqueue at the head */
unsigned int de_sendq_tail; /* Dequeue at the tail */
dp_user2nicf_t de_user2nicf;
dp_nic2userf_t de_nic2userf;
dp_getblock_t de_getblockf;
#endif
#if ENABLE_3C509 == 1
/* For use by 3Com Etherlink III (3c509) driver */
port_t de_id_port;
port_t de_if_port;
#endif
#if ENABLE_3C501 == 1 || ENABLE_3C509 == 1
/* For use by 3Com Etherlink (3c501 and 3c509) driver */
buff_t *de_recvq_head;
buff_t *de_recvq_tail;
u16_t de_recv_mode;
clock_t de_xmit_start;
#endif
} dpeth_t;
/*
* Function definitions
*/
/* devio.c */
#if defined USE_IOPL
#include <machine/portio.h>
#else
unsigned int inb(unsigned short int);
unsigned int inw(unsigned short int);
void insb(unsigned short int, void *, int);
void insw(unsigned short int, void *, int);
void outb(unsigned short int, unsigned long);
void outw(unsigned short int, unsigned long);
void outsb(unsigned short int, void *, int);
#endif
/* netbuff.c */
void *alloc_buff(dpeth_t *, int);
void free_buff(dpeth_t *, void *);
void init_buff(dpeth_t *, buff_t **);
/* 3c501.c */
#if ENABLE_3C501 == 1
int el1_probe(dpeth_t *);
#else
#define el1_probe(x) (0)
#endif
/* 3c503.c */
#if ENABLE_3C503 == 1
int el2_probe(dpeth_t *);
#else
#define el2_probe(x) (0)
#endif
/* 3c509.c */
#if ENABLE_3C509 == 1
int el3_probe(dpeth_t *);
#else
#define el3_probe(x) (0)
#endif
/* ne.c */
#if ENABLE_NE2000 == 1
int ne_probe(dpeth_t * dep);
#else
#define ne_probe(x) (0)
#endif
/* wd.c */
#if ENABLE_WDETH == 1
int wdeth_probe(dpeth_t * dep);
#else
#define wdeth_probe(x) (0)
#endif
/** dp.h **/
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